CN110277688B

CN110277688B - Connector cover

Info

Publication number: CN110277688B
Application number: CN201910184667.4A
Authority: CN
Inventors: 杉本有规; 平山爱次
Original assignee: Sumitomo Wiring Systems Ltd
Current assignee: Sumitomo Wiring Systems Ltd
Priority date: 2018-03-13
Filing date: 2019-03-12
Publication date: 2021-04-09
Anticipated expiration: 2039-03-12
Also published as: CN110277688A; US20190288444A1; JP2019160540A; US10644440B2; JP7004214B2

Abstract

The invention provides a connector cover, which can improve the operability when connecting a connector in a narrow space and can prevent the connector cover from falling off from the connector. A connector cover (1) for protecting a wire (80) extending rearward from a connector (100) is provided with: a cover body (10) which can be attached to the connector (100) so as to extend rearward of the connector (100) and is fixed to the connector (100); a rear cover (50) disposed behind the cover body (10); a connecting part (70) which connects the rear side cover (50) and the cover main body (10); and an extended shape holding portion (60) capable of holding the rear cover (50) in a rear extended state extending rearward of the connector (100), wherein the rear cover (50) is pressed laterally by the wire (80) and shifts to a rear extended release state in which the rear extended state is released.

Description

Connector cover

Technical Field

The technology disclosed in this specification relates to a connector cover.

Background

Conventionally, as a connector including a wire cover that surrounds a wire drawn out from a rear surface of a housing, for example, a connector of patent document 1 is known. In the connector, the wire cover includes: a pair of base parts having a half-divided shape and attached to the housing from both sides; and a pair of cover bodies having a half-divided shape and mounted to the base portion from both sides. The locking projection provided on one of the pair of cover bodies and the locking piece provided on the other are engaged with each other in a state of being fitted from both sides to a rotation shaft provided on the base portion, and are supported by the base portion so as to be swingable about the rotation shaft.

The side wall of the base part is provided with an engaging claw, and the two sides of the cover main body are provided with contact parts. When the coupling portion of the counterpart is disposed at a position deviated from the housing axis, the lid body is brought into a rotation state in which the contact portion is engaged with the engagement claw and the lid body is rotated with respect to the base portion. Thus, the electric wire drawn out from the rear surface of the housing can be drawn out in a direction corresponding to the arrangement position of the connection portion of the other.

Documents of the prior art

Patent document

Patent document 1: japanese laid-open patent publication No. 2007-250397

Disclosure of Invention

Problems to be solved by the invention

However, in this technique, when the electric wire drawn out from the lid main body in the rotated state is further bent, a forced bending force applied to the lid main body reaches the base portion, and there is a possibility that the locking portion of the base portion and the housing is broken.

Means for solving the problems

A connector cover according to the technology disclosed in the present specification is a connector cover for protecting a wire extending rearward from a connector, and includes: a cover main body which can be mounted so as to extend rearward of the connector and is fixed to the connector; a rear cover disposed behind the cover main body; a coupling portion that couples the rear side cover and the cover main body; and an extended shape holding portion capable of holding the rear cover in a rear extended state extending rearward of the connector, the rear cover being pressed laterally by the wire to shift to a rear extended released state in which the rear extended state is released.

According to this configuration, since the rear cover is formed in a shape extending rearward of the connector in a rearward extended state, the size of the connector cover can be increased by the length of the rear cover. Thus, even when the connector is connected to a mating connector disposed inside a narrow space, the connector can be inserted into the narrow space with the rear cover held, and workability is improved.

When the electric wire is bent and brought into contact with the rear cover, a force that rotationally displaces the connector cover with the rear cover as a force point and the attachment portion of the cover main body and the connector as a fulcrum acts on the connector cover. In this case, even when the rear cover is still in a rear extended state extending rearward of the connector, the load acting on the fulcrum increases according to the lever principle due to the length extending rearward of the connector, which is likely to cause the connector cover to be detached from the connector. In contrast, according to the above configuration, when the rear cover is pressed by the electric wire, the rear cover shifts to the rear extension released state in which the rear extension state is released, so that the connector cover is short-sized, and an increase in load acting on the fulcrum can be suppressed. This can prevent the connector cover from coming off the connector.

In addition, since the rear cover is coupled to the cover main body by the coupling portion, the rear cover can be prevented from falling off from the cover main body when the rear extended state is released.

As an embodiment of the technology disclosed in the present specification, the following configuration is preferable.

(1) The cover body is provided with a locking portion that is locked to the connector with a predetermined locking force, the holding force with which the extended shape holding portion holds the rear side cover in the rear extended state is set to be smaller than a pressing force with which the electric wire presses the rear side cover, and the predetermined locking force is set to be larger than a load generated at the locking portion by the pressing force.

According to this configuration, the pressing force of the wire pressing the rear cover exceeds the holding force of the extended shape holding portion to release the rear extended state, and the locking force of the locking portion is larger than the load generated at the locking portion by the pressing force, so that the locking to the connector can be maintained. This can reliably maintain the locked state of the connector cover to the connector.

Effects of the invention

According to the connector cover disclosed in the present specification, workability in connecting the connector in a narrow space can be improved, and the connector can be prevented from falling off the connector.

Drawings

Fig. 1 is a perspective view of a state in which a connector cover of the embodiment is attached to a connector as viewed from the rear.

Fig. 2 is a side view of a state where the connector cover is attached to the connector.

Fig. 3 is a perspective view of the connector.

Fig. 4 is a perspective view of the connector cover.

Fig. 5 is a bottom view of the connector cover.

Fig. 6 is a front view of the connector cover.

Fig. 7 is a rear view of the connector cover.

Fig. 8 is a side view of the half-divided member as viewed from the joining surface side.

Fig. 9 is a perspective view of a half-divided member constituting the connector cover.

Fig. 10 is a bottom view of the half-divided member.

Fig. 11 is a sectional view a-a of fig. 2.

Fig. 12 is a sectional view B-B of fig. 2.

Fig. 13 is a cross-sectional view C-C of fig. 2.

Fig. 14 is a plan view showing a state where one separable portion of the rear cover releases the rear extended state.

Fig. 15 is a plan view showing a state where two separable portions of the rear side cover release the rear extended state.

Fig. 16 is a perspective view of a connector cover in a related manner.

Fig. 17 is a plan view showing a state in which a related connector cover is bent.

Detailed Description

< embodiment >

(integral constitution)

The embodiment will be described with reference to fig. 1 to 15. As shown in fig. 1 and 2, the connector cover 1 of the present embodiment is used by being attached to a connector 100. Hereinafter, the upper side in fig. 1 is referred to as the upper side, and the right side in fig. 2 is referred to as the front side.

(connector 100)

As shown in fig. 3, the connector 100 has a rectangular parallelepiped shape extending in the front-rear direction, and the electric wire 80 is drawn out in the rear direction. The connector 100 is electrically connected to a mating connector by fitting the distal end side thereof to the mating connector.

A pair of right and left mounting receiving portions 110 to which the connector cover 1 is mounted are provided at the rear end of the connector 100. The mounting receiving portions 110 protrude laterally from the left and right side walls 12 of the connector 100, respectively. Each mounting receiver 110 includes: a protrusion-shaped anti-slip protrusion 111 extending vertically from the left and right side walls 12 of the connector 100; and a positioning protrusion 112 having a protrusion shape extending forward from the center of the retaining protrusion 111 in the front-rear direction.

(connector cover 1)

As shown in fig. 4 to 7, the connector cover 1 has a cylindrical shape opened in the front and rear as a whole. As shown in fig. 4, the connector cover 1 includes: a cover body 10 attached to the connector 100; a rear cover 50 disposed behind the cover main body 10; and a coupling portion 70 coupling the cover main body 10 and the rear cover 50.

(semi-divided constitution)

Specifically, as shown in fig. 9, the connector cover 1 is formed by engaging a barrel-shaped half-divided member 1L and a second half-divided member 1R having the same shape as the half-divided member 1L, which extend in the front-rear direction as a whole, with each other in a configuration rotated by 180 ° around an axis relative to each other. Hereinafter, a description will be given of a half-split member shown on the back side in fig. 1 as the first half-split member 1L and a half-split member shown on the outer side as the second half-split member 1R. The portion provided in common in the first half-divided member 1L and the second half-divided member 1R is shown with the letter "L" at the end of each portion of the first half-divided member 1L and the letter "R" at the end of each portion of the second half-divided member 1R. When the parts of the first half divided member 1L and the parts of the second half divided member 1R common to them are collectively shown, L and R may not be shown at the end.

(cover body 10)

The cover body 10 is provided to surround and protect the electric wire 80 drawn out from the connector 100, and to fix the electric wire protector 90 covering the electric wire 80 to the connector 100 as shown in fig. 1.

As shown in fig. 4, the cover body 10 has a cylindrical shape including a top wall 11, left and right side walls 12, and a bottom wall 13, and has an electric wire surrounding hole 15 opened forward as shown in fig. 6 and an electric wire protector holding hole 16 opened rearward as shown in fig. 7 formed therein. As shown in fig. 6 and 7, the wire surrounding hole 15 and the wire protector holding hole 16 communicate in the front-rear direction. As shown in fig. 8, the wire protector holding hole 16 is formed in a corrugated shape in which a large diameter portion and a small diameter portion are alternately continuous from the front end to the rear end, and the inner diameter thereof is slightly smaller than the large diameter portion and the small diameter portion of the wire protector 90, respectively.

As shown in fig. 4, a pair of left and right mounting portions 20 are provided at the front end of the cover body 10, and the pair of left and right mounting portions 20 are used to be locked to the mounting receiving portions 110 of the connector 100. As shown in fig. 1, the mounting portion 20 extends forward from both the left and right side walls 12 of the cover main body 10, and as shown in fig. 2 and 6, includes a mounting recess 21 for locking with the locking protrusion of the connector 100. The mounting recess 21 is formed in a shape in which the inner wall side is recessed toward the outer wall side. The mounting recess 21 includes a groove-shaped retaining recess 21A extending vertically and a groove-shaped positioning recess 21B extending forward from the center of the retaining recess 21A in the front-rear direction. One of the pair of left and

right attachment portions

20L, 20R is provided on the first half-divided member 1L, and the other attachment portion 20R is provided on the second half-divided member 1R.

As shown in fig. 4, the body half-divided

portions

10L, 10R constituting the front sides of the first half-divided member 1L and the second half-divided member 1R of the cover body 10 are held by a pair of upper and lower first locking portions 30 and a pair of upper and lower second locking portions 40 so as to be separable from each other.

(first engaging part 30)

The upper and lower pair of first locking portions 30 are respectively constituted by a first locking piece 31 and a first locking projection 32.

The upper first locking piece 31L is provided on the ceiling wall 11L of the first half member 1L, and extends in a tongue shape along the ceiling wall 11R of the second half member 1R. The upper first locking projection 32R is provided near the end on the first half-divided member 1L side at the ceiling wall 11R of the second half-divided member 1R, and projects upward in a tapered shape with a projecting height increasing from the first half-divided member 1L side toward the side wall 12R side.

As shown in fig. 5, the first locking piece 31R on the lower side is provided on the bottom wall 13R of the second half-divided member 1R, and the first locking projection 32L on the lower side is provided on the bottom wall 13L of the first half-divided member 1L.

As shown in fig. 4 and 5, each first locking portion 30 is engaged in a locked state by being fitted into a first locking hole 31A provided in the first locking piece 31 via a first locking protrusion 32.

(second engaging part 40)

The upper and lower pair of second locking portions 40 are respectively constituted by a second locking piece 41 and a second locking projection 42.

As shown in fig. 4, upper second locking piece 41R is provided on top wall 11R of second half-divided member 1R, and extends in a tongue-like shape along top wall 11L on the first half-divided member 1L side. The upper second locking projection 42R projects upward from the vicinity of the end portion on the second half-divided member 1R side at the ceiling wall 11L of the first half-divided member 1L, and projects upward in a tapered shape whose projecting height increases from the second half-divided member 1R side toward the side wall 12L side.

As shown in fig. 5, the lower second locking piece 41L is provided on the bottom wall 13L of the first half-divided member 1L, and the lower second locking projection 42R is provided on the bottom wall 13R of the second half-divided member 1R.

As shown in fig. 4 and 5, each second locking portion 40 is engaged in a locked state by being fitted into a second locking hole 41A provided in the second locking piece 41 via the second locking projection 42.

As shown in fig. 10, the second locking piece 41 and the second locking protrusion 42 are formed in the same shape and the same size as the first locking piece 31 and the first locking protrusion 32 of the first locking portion 30, respectively. Thereby, the second locking portion 40 and the first locking portion 30 have equal locking forces. However, since the second locking portion 40 is disposed rearward of the first locking portion 30, when a lateral pressing force acts on the cover body 10, the second locking portion 40 is more likely to receive the pressing force than the first locking portion 30. Therefore, the second locking portion 40 and the first locking portion 30 are arranged such that the second locking portion 40 is easier to release the locking than the first locking portion 30.

When the second locking portion 40 is in the locked state, the first half divided member 1L and the second half divided member 1R are integrated with the joint surface 14 in contact with each other on the rear end side of the cover main body 10, and the wire protector 90 is fitted into the wire protector holding hole 16 inside thereof. Thereby, the wire protector 90 is fixed to the connector 100 in a state in which expansion and contraction are suppressed. The electric wires 80 led out from the connector 100 are led out rearward through the electric wire surrounding hole 15 in the connector cover 1 and the inside of the electric wire protector 90 held in the electric wire protector holding hole 16. Thus, the electric wires 80 led out from the connector 100 are restrained from being bent sideways in the connector cover 1 and protected from external force.

(rear side cover 50)

As described above, the connector cover 1 is attached to protect the electric wires 80 drawn out from the connector 100, but when a mating connector, not shown, which is a connection target, is provided inside a narrow space, for example, an operator may hold the rear end of the connector cover 1 and insert the connector 100 inside the narrow space. When such a use mode is considered, it is desirable that the overall length of the connector cover 1 is long.

Therefore, in the connector cover 1 of the present embodiment, the rear cover 50 is provided behind the cover main body 10 and these are coupled by the coupling portion 70, so that the connector cover 1 is increased by the length of the rear cover 50.

(joining part 70)

As shown in fig. 10, the coupling portion 70 is formed in a substantially plate shape that is thin in the left-right direction of the plate surface and extends forward and backward, and couples the rear end of the cover main body 10 and the front end of the rear cover 50 to each other on the left and right sides of the connector cover 1. The central portion of the coupling portion 70 in the front-rear direction is formed to be thinner than the front-rear end portions. This allows the coupling portion 70 to bend laterally at the center in the front-rear direction.

As shown in fig. 4, the rear cover 50 is configured as follows: the rear end sides of the first half-divided member 1L and the second half-divided member 1R are formed as viewed from the rear

The character-shaped rear side cover half-divided

portions

50L and 50R are held by a pair of upper and lower elongated shape holding portions 60 so as to be dividable from each other, and the rear side cover 50 is formed into a flat rectangular tubular shape as a whole. The rear cover 50 has a wire protector surrounding hole 51 formed therein and penetrating in the front and rear direction. The inner dimension of the wire protector surrounding hole 51 in the vertical direction is formed slightly smaller than the large diameter portion of the wire protector 90.

The pair of upper and lower elongated shape retaining portions 60 are provided on the front end side of the rear cover 50 and each include an elongated retaining piece 61 and an elongated retaining projection 62.

As shown in fig. 4, the upper elongated holding piece 61L is provided on the top wall 11L of the first half divided member 1L and protrudes in a tongue piece shape along the top wall 11R of the second half divided member 1R. The extension holding piece 61L is formed with an extension holding hole 61AL penetrating vertically. The upper extension maintaining projection 62R is provided near the end portion on the first half divided member 1L side at the ceiling wall 11R of the second half divided member 1R, and projects upward in a tapered shape whose projecting height increases from the first half divided member 1L side toward the side wall 12R side. The lower extension maintaining piece 61R is provided on the second half-divided member 1R, and the lower extension maintaining projection 62L is provided on the first half-divided member 1L.

Each of the elongated shape holding portions 60 is engaged by the elongated holding projection 62 being fitted into the elongated holding hole 61A provided in the elongated holding piece 61.

As shown in fig. 10, the dimensions of the extension maintaining piece 61 and the extension maintaining projection 62 are about 1/2 of the second locking piece 41 and the second locking projection 42 of the second locking portion 40 in the vertical direction, the horizontal direction, and the front-rear direction. Thereby, the locking force of the elongated shape holding portion 60 is set smaller than the locking force of the second locking portion 40. Accordingly, since the extended shape holding portion 60 is disposed rearward of the second locking portion 40, when a lateral pressing force acts on the rear cover 50, the extended shape holding portion 60 is more likely to receive the pressing force than the second locking portion 40. Therefore, the extended shape holding portion 60 and the second locking portion 40 are in an arrangement relationship in which the extended shape holding portion 60 is easily unlocked.

(mounting method of connector cover 1)

In order to attach the connector cover 1 composed of the pair of half

members

1L and 1R to the connector 100, first, the first half member 1L and the second half member 1R are covered from both sides on the electric wire 80 drawn out rearward from the connector 100 and the electric wire protector 90 covering the electric wire 80 while the attachment portion 20 of the cover body 10 is fitted into the attachment receiving portion 110 of the connector 100 from the left and right, and the first locking portions 30, the second locking portions 40, and the extended shape holding portions 60 are set to the locking state, respectively. Thereby, the connector cover 1 in which the pair of half divided

members

1L, 1R are assembled to each other and attached to the connector 100 is completed.

(holding the connector cover 1)

In this state, as shown in fig. 11, the pair of attachment portions 20 are fitted into the pair of attachment receiving portions 110 from the outside, and the displacement in the left-right direction is restricted, and as shown in fig. 2, the first half-divided member 1L and the second half-divided member 1R are fitted into the retaining protrusion 111 and the positioning protrusion 112, respectively, via the retaining recess 21A and the positioning recess 21B, and the displacement in the front-rear direction and the vertical direction is restricted, and the locking state is achieved. The locked state is maintained by setting the first locking portion 30, particularly the first locking portion 30, of the first locking portion 30 and the second locking portion 40 to the locked state as described above.

In addition, the second locking portion 40 is provided on the outer surface side of the wire protector holding hole 16, and therefore, by the second locking portion 40 being brought into the locking state as shown in fig. 12, the wire protector holding hole 16 is prohibited from being opened. Thereby, the electric wire protector 90 is held in the electric wire protector holding hole 16 in a state of coming off.

In addition, inside the rear side cover 50, as shown in fig. 13, the wire protector surrounding hole 51 is in contact with the large diameter portion of the wire protector 90. Thereby, the wire protector 90 is held in the wire protector surrounding hole 51 in a state of being slightly crushed in the vertical direction and having a gap left and right. Thereby, the wire protector 90 can be displaced in the left-right direction while sliding on the inner surfaces of the top wall 11 and the bottom wall 13.

Thus, the connector cover 1 is fixed to the connector 100 so as to extend rearward of the connector 100, and the electric wire 80 drawn rearward from the connector 100 is housed in the interior thereof (specifically, between the first half-divided member 1L and the second half-divided member 1R). Therefore, when connecting the connector 100 to the mating connector, the operator can carry out the connection operation to the mating connector with holding any one of the connector 100 and the connector cover 1 (the cover main body 10 and the rear cover 50).

The free ends of the respective locking pieces are lifted upward, or the locking pieces and the locking projections are forcibly pulled in directions laterally away from each other, whereby the locked state of the first locking portion 30, the second locking portion 40, and the extended shape holding portion 60 is released.

However, particularly in a vehicle with limited space, when the other end side of the electric wire 80 is connected to the counterpart device after the connector 100 is connected to the connection target connector, the counterpart device is not necessarily disposed at a position where the electric wire 80 can be connected without being bent. For example, the counterpart device may be disposed at the closest position on the side of the connector cover 1 so that the connection direction is directed toward the connector cover 1, and the electric wire protector 90 may be bent at a right angle or more so that the tip end of the electric wire 80 is directed toward the connection direction of the counterpart device. At this time, when the wire protector 90 abuts against the rear end of the connector cover 1, a load that causes the entire connector cover 1 to rotate and displace is generated with the rear end P1 (see fig. 1) as a point of force and the attachment portion 20 as a fulcrum P0 (see fig. 1)).

In this case, in the present embodiment, since the rear cover 50 is provided behind the cover main body 10 in the connector cover 1, the size of the connector cover 1 becomes long, and therefore, the distance L1 (see fig. 10) from the force point to the fulcrum becomes relatively long, and the load acting on the fulcrum increases according to the principle of leverage. When the load exceeds the locking force of the mounting portion 20, the connector cover 1 is detached from the connector 100.

Therefore, the connector cover 1 of the present embodiment has the following configuration: as described above, the rear cover 50 is formed by providing the laterally flexible coupling portion 70 between the rear cover 50 and the cover main body 10, and engaging the pair of right and left rear cover half-divided

portions

50L, 50R, which are coupled to the cover main body 10 by the coupling portions, so as to be separable from each other. The locking force (holding force) of the elongated shape holding portion 60, the locking force of the second locking portion 40, and the locking force of the first locking portion 30 are set so that the elongated shape holding portion 60, the second locking portion 40, and the first locking portion 30 are unlocked in this order as described above.

When the wire protector 90 is bent sideways and brought into contact with the rear side cover 50, first, the rear side cover 50 is pressed by the wire protector 90. At this time, the rear-side cover half-divided portion 50R on the side not pressed is returned to the original position by the elastic restoring force of the coupling portion 70, and the rear-side cover half-divided portion 50L on the side pressed continues to receive the pressing force from the wire protector 90, so that the extended shape holding portion 60 is pulled to the left and right as if it is pried open, and the locking is released. Thereby, the rear extension released state is released in which the rear extension state of the rear cover 50 is released, and as shown in fig. 14, the rear cover 50 is shifted to a split state in which it is split into two rear cover half-

split portions

50L, 50R. In the divided state, the rear cover 50 on the pressed side can be rotationally displaced around the hinge, and is retracted outside the movement range of the wire protector 90 by being continuously pressed by the wire protector 90.

In this state, the contact point of the wire protector 90 and the connector cover 1 moves to the rear end P2 of the cover main body 10 (refer to fig. 10). Thus, the distance between the fulcrum P0 and the force point P2 becomes L2 shorter than L1, and an increase in load at the fulcrum P0 can be suppressed.

When the wire protector 90 is further bent, the second locking portion 40 is released from the locked state, and the rear end of the cover body 10 is divided. As a result, the force point moves further to or near the point P3 (see fig. 10), and the force point P3 moves further closer to the fulcrum P0, whereby an increase in the load on the fulcrum can be further suppressed.

When the electric wire 80 or the electric wire protector 90 is further bent beyond the above, the locked state of the first locking portion 30 is released, and the locked state of the mounting portion 20 is also released. Thereby, the connector cover 1 is disengaged from the connector 100, but since the mounting receiving portion 110 of the connector 100 is released from the load, breakage of the connector 100 can be avoided at least.

In addition, in the present embodiment, since the rear cover 50 is constituted by the respective rear covers 50L, 50R of the first half divided member 1L and the second half divided member 1R, which are coupled to the cover main body 10 via the coupling portion 70, the rear cover 50 can be released from the rearward extension state in both sides of the electric wire protector 90 as shown in fig. 15. Thus, the cover body 10 is reduced in size on the side pressed by the wire protector 90, regardless of which direction the wire protector 90 presses the connector cover 1 to the left or right.

(Effect)

According to the configuration of the present embodiment, the connector cover 1 for protecting the electric wire 80 extending rearward from the connector 100 includes: a cover body 10 which can be attached to extend rearward of the connector 100 and is fixed to the connector 100; a rear cover 50 disposed behind the cover main body 10; a coupling portion 70 coupling the rear side cover 50 and the cover main body 10; and an extended shape holding portion 60 capable of holding the rear cover 50 in a rear extended state extending rearward of the connector 100, wherein the rear cover 50 is pressed sideways by the electric wire 80 and shifts to a rear extended released state in which the rear extended state is released.

According to this configuration, since the rear cover 50 is formed in a shape extending rearward of the connector 100 in a rearward extended state, the size of the connector cover 1 can be increased by the length of the rear cover 50. Thus, even when the connector is connected to a mating connector disposed inside a narrow space, for example, the connector 100 can be inserted inside the narrow space with the rear cover 50 held, and workability is good.

When the electric wire 80 is bent and brought into contact with the rear cover 50, a force that rotationally displaces the connector cover 1 with the rear cover 50 as a force point P1 and with a mounting portion of the cover main body 10 and the connector 100 as a fulcrum P0 acts on the connector cover 1. At this time, even when the rear cover 50 is still in the rear extended state extending rearward of the connector 100, the load acting on the fulcrum P0 is increased by the length L1 extending rearward of the connector 100 according to the principle of leverage, and the connector cover 1 is likely to be detached from the connector 100. In contrast, according to the above configuration, when the rear cover 50 is pressed by the electric wire 80, the rear extension released state is released, so that the connector cover 1 has the short dimension L2, and the load acting on the fulcrum P0 can be suppressed from increasing. This can prevent the connector cover 1 from falling off the connector 100.

In addition, since the rear cover 50 is coupled to the cover main body 10 by the coupling portion 70, the rear cover 50 can be prevented from falling off from the cover main body 10 when the rear extended state is released.

The cover body 10 is provided with a locking portion that maintains locking to the connector 100 with a predetermined locking force, the holding force of the extended shape holding portion 60 that holds the rear cover 50 in the rear extended state is set to be smaller than the pressing force with which the electric wire 80 presses the rear cover 50, and the predetermined locking force is set to be larger than the load generated at the locking portion by the pressing force.

According to this configuration, the pressing force with which the electric wire 80 presses the rear cover 50 exceeds the holding force of the extended shape holding portion 60 to release the rear extended state, and the locking force of the locking portion is larger than the load generated at the locking portion by the pressing force, so that the locking to the connector 100 can be maintained. This can reliably maintain the locked state of the connector cover 1 to the connector 100.

< other embodiment >

The technology disclosed in the present specification is not limited to the embodiments described above and illustrated in the drawings, and can be implemented, for example, as follows.

(1) In the above embodiment, the following configuration is adopted: the electric wire 80 is covered with a corrugated tube as the electric wire protector 90, and the electric wire protector 90 is held in the second locking hole by the second locking portion 40, but the electric wire protector 90 may be omitted. In this case, the rear cover is pressed sideways by the wire, and the rearward extension state is released.

(2) In the above embodiment, the first locking portion 30 and the second locking portion 40 are provided in the cover body 10, but the second locking portion 40 may be omitted.

(3) In the above embodiment, the rear cover 50 is constituted by the pair of rear cover half-divided

portions

50L, 50R, but the rear cover 50 may not be constituted by the pair of rear cover half-divided portions. For example, the following configuration may be adopted: the rear cover is formed in a shape divided into three or more parts in the longitudinal direction, and these parts are integrally formed with each other by an extended shape holding part having the same shape as that of the above-described embodiment, and are held in a rear extended state. Alternatively, for example, when the direction in which the electric wire is likely to bend is only one direction, the side of the pair of rear cover half-divided portions where the electric wire is not likely to bend may be formed in a shape fixed to the rear end of the cover main body (in other words, a part of the cover main body), and the side where the electric wire is likely to bend may be formed as a rear cover coupled to the cover main body by the coupling portion.

(4) In the above embodiment, the elongated shape holding portion 60 is constituted by the elongated holding piece 61 and the elongated holding projection 62, but the configuration of the elongated shape holding portion 60 is not limited to this. For example, the following configuration may be adopted: the rear cover is formed of a single cylindrical member, and a thin breakable portion extending in the front-rear direction is provided in the cylindrical member, and the breakable portion is broken by being pressed by the electric wire, thereby releasing the rear extended state. In this case, the size of the connector cover is reduced by the amount of breaking at the side pressed by the electric wire, and the electric wire can be extended sideways from the gap formed by the breaking in the rear side cover.

(5) In the above embodiment, the rear end of the cover main body 10 and the front end of the rear cover 50 are coupled by the coupling portion 70, but the coupling portion between the cover main body 10 and the rear cover 50 is not limited to this. For example, the center in the front-rear direction of the cover main body 10 and the center in the front-rear direction of the rear cover 50 may be connected by a connecting portion.

< correlation method >

A related aspect of the above embodiment will be described with reference to fig. 16 and 17. In the present related embodiment, as for the configuration corresponding to the above-described embodiment, reference numerals of embodiment 1 plus 1000 are used. The same configurations, operations, and effects as those of embodiment 1 will not be described, and the same reference numerals will be used for the same configurations as those of embodiment 1.

The present related embodiment differs from the connector cover 1 of the above-described embodiment in that the connector cover 1001 of the above-described embodiment and the present related embodiment does not include a coupling portion for coupling the rear cover 1050 and the cover main body 1010. That is, the rear side cover 1050 is a separate member from the cover main body 1010.

The rear cover 1050 is formed of a pair of rear cover half-

portions

1050U and 1050B attached to the wire protector 90 from both sides. The rear cover 1050 includes a flange-shaped cover main body contactable portion 1052 extending from the front end in the diameter expansion direction. In a state where the connector cover 1001 is attached to the connector 100, the rear side cover 1050 is attached to the wire protector 90 in a state where the cover main body abuttable portion 1052 is opposed to or in contact with the rear end of the cover main body 1010.

When an operator performs a connection operation of the connector 100 to a mating connector or the like in a narrow space, the operator can press the cover main body 1010 into the mating connector or the like by holding the rear cover 1050 and bringing the cover main body abuttable portion 1052 into contact with the rear end of the cover main body.

When the wire protector 90 is bent in a state where the connector cover 1001 is attached to the connector 100, as shown in fig. 17, the rear side cover 1050 is displaced from the cover main body 1010 independently with the wire protector 90 while the cover main body abuttable portion 1052 is brought into abutment with or opposed to the cover main body 1010. Thereby, the rear extended state of the rear cover 1050 is released.

At this time, a load is generated in the cover main body 1010 with a contact point P1002 of the rear end thereof and the wire protector 90 as a point of force. Then, the locked state of the second locking portion 1040 is released before the locked state of the first locking portion 1030. This can prevent the cover main body 1010 from coming off the connector 100.

When the wire protector 90 inside the rear cover 1050 is largely bent and the load applied to the rear cover 1050 from the wire protector 90 exceeds the locking force of the extended shape retaining portion 1060, the rear cover 1050 is separated into rear cover half-divided

portions

1050U and 1050B. This can prevent the rear cover 1050 from interfering with bending of the wire protector 90.

According to this related aspect, as in the above-described embodiment, workability in connecting the connectors can be improved, and the cover main body 1010 can be prevented from coming off the connector 1000. However, in the case of this related aspect, since the rear-side cover half-sections 1050L and 1050R are not coupled to the cover main body 1010, the rear-side cover half-

sections

1050U and 1050B may fall off the connector 100. Further, since the elastic restoring force of the connecting portion does not act on one of the rear-side cover half-divided

portions

1050U and 1050B, the engagement of the extended shape retaining portion 1060 is more difficult to be released than in the embodiment.

Description of the reference numerals

1: connector cover

10: cover main body

50: rear side cover

60: extended shape holding part

70: connecting part

80: electric wire

100: connector with a locking member

Claims

1. A connector cover for protecting a wire extending rearward from a connector, the connector cover comprising:

a cover main body which can be mounted so as to extend rearward of the connector and is fixed to the connector;

a rear cover disposed behind the cover main body;

a coupling portion that couples the rear side cover and the cover main body; and

an extended shape holding portion capable of holding the rear cover in a rear extended state extending rearward of the connector,

the rear cover has more than 2 rear cover half-divided parts,

the extended shape retaining portion includes an extended retaining piece formed on one of 2 adjacent rear-side cover half-divided portions among the 2 or more rear-side cover half-divided portions and an extended retaining projection formed on the other, the extended retaining projection is engaged with the extended retaining piece to retain the rear side cover in a rear extended state extending rearward of the connector, and a retaining force of the extended shape retaining portion retaining the rear side cover in the rear extended state is set smaller than a pressing force of the electric wire pressing the rear side cover,

the rear cover is pressed laterally by the electric wire, and the engagement between the extension maintaining protrusion and the extension maintaining piece is released to separate the adjacent 2 rear cover half-divided parts, thereby shifting to a rear extension release state in which the rear extension state is released.

2. The connector cover according to claim 1,

the cover body is provided with a locking part which is locked to the connector with a predetermined locking force,

the predetermined locking force is set to be larger than a load generated in the locking portion by the pressing force.